<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>

<body>
  <form action="http://localhost:8080/aaa" method="post">
    用户名: <input type="text" name="username" id=""> <br> 密码： <input type="password" name="password" id=""><br> 内容： <textarea name="content" id="" cols="30" rows="10">

    </textarea>
    <input type="submit" value="提交">
  </form>
</body>

</html>
